/*********************************************************************
 * Copyright (C) 2004 Andrew Khan
 * <p>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * <p>
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ***************************************************************************/

package jxl.biff.drawing;

import jxl.biff.IntegerHelper;
import jxl.biff.Type;
import jxl.biff.WritableRecordData;
import jxl.common.Logger;
import jxl.read.biff.Record;

/**
 * A TextObject (TXO) record which contains the information for comments
 */
public class TextObjectRecord extends WritableRecordData {
    /**
     * The logger
     */
    private static Logger logger = Logger.getLogger(TextObjectRecord.class);

    /**
     * The raw drawing data which was read in
     */
    private byte[] data;

    /**
     * The text
     */
    private int textLength;

    /**
     * Constructor invoked when writing out this object
     *
     * @param t the text string
     */
    TextObjectRecord(String t) {
        super(Type.TXO);

        textLength = t.length();
    }

    /**
     * Constructs this object from the raw data
     *
     * @param t the raw data
     */
    public TextObjectRecord(Record t) {
        super(t);
        data = getRecord().getData();
        textLength = IntegerHelper.getInt(data[10], data[11]);
    }

    /**
     * Constructor
     *
     * @param d the drawing data
     */
    public TextObjectRecord(byte[] d) {
        super(Type.TXO);
        data = d;
    }

    /**
     * Gets the text length.  Used to determine if there is any data held
     * in the following continue records
     *
     * @return the length of the text
     */
    public int getTextLength() {
        return textLength;
    }

    /**
     * Expose the protected function to the SheetImpl in this package
     *
     * @return the raw record data
     */
    public byte[] getData() {
        if (data != null) {
            return data;
        }

        data = new byte[18];

        // the options
        int options = 0;
        options |= (0x1 << 1); // horizontal alignment - left
        options |= (0x1 << 4); // vertical alignment - top
        options |= (0x1 << 9); // lock text
        IntegerHelper.getTwoBytes(options, data, 0);

        // the rotation
        // no rotation

        // Length of text
        IntegerHelper.getTwoBytes(textLength, data, 10);

        // Length of formatting runs
        IntegerHelper.getTwoBytes(0x10, data, 12);

        return data;
    }
}




